Question Playing a game for an hour makes my games lag

Apr 18, 2021
Im having an issue in my pc after playing for like 1-2 hours games like gta v or any AAA games. In first my pc is running so smooth and this is not like i used my pc before i can play longer without lagging but this time it suddenly happened that issue. My windows are activated too and i checked what's in my task manager but the cpu and everything is working properly. My pc need to be restarted just to fix this issue. Please someone help me im sufferings with this issue :(